CHAPTER 11. 



BUILDING MATERIALS, ETC. 



TfrN this chapter I propose to enumerate the principal quarries whence 

 (J% stones used for building purposes are obtained; mention whatever 

 facts have been obtained respecting the quantity of material sent to mar- 

 ket; the names of the companies; number of men employed, etc. The 

 articles used for building are properly granite, slate, flags, clays for 

 brick, limestone, and soapstone. Other useful articles, obtained from 

 the earth for direct use, or capable of special manufacture, are quartz and 

 feldspar for glass; mica, plumbago, precious stones, whetstones, copperas, 

 alum, titanium, polishing powder, moulding sand; and ochre for paint. 

 These all occur abundantly within our limits. 



Granite. 



So common is this rock that New Hampshire is usually known as the 

 Granite State. In evcry-day life this term is applied to rocks which are 

 not properly granite in the technical sense, as sienite and gneiss, but all 

 of them useful for building. In the stratigraphical and mineralogical parts 

 of our report, different classifications are emiDloyed, In the first instance 

 are the Concord, Conway, Albany, Chocorua, and other geographical 

 terms, used for convenience. In the second instance, the names of the 

 peculiar constituent minerals are employed to distinguish them, — as the 

 biotitc, muscovitc biotitc, and hornblende granites. It will be unneces- 



